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8.5 “PWM” (fixed), Conductivity
“CD RELAY 1” and “CD RELAY 2” outputs can be set into this mode.
Pulse-width modulation (PWM) of a signal or power source involves the modulation of its duty cycle, to either convey
information over a communications channel or control the amount of power sent to a load.
This mode works over a settable (0 to 100 seconds) time to switch on or off selected output.
Time resolution is 5 seconds, 5 steps. During this time if reading value will move towards a set value (on or off) the PWM
will operate the output on timered basis. Reaching the set value the PWM will permanently leave on or off the output.
Parameters to set are:
mS range: two mS value between PWM operates.
Ton: “ON” time if output is active.
Toff: “OFF” time if output is active.
E.g.: set rst mS value: (OFF) at 2,00 and second mS value: (ON) at 1,50.
Set “WORK-PAUSE” activity with Toff 0 seconds and Ton 80 seconds.
For reading values ≥ 2,00 output will always be OFF.
For reading values ≤ 1,50 output will be ON within “WORK-PAUSE” mode based on Ton and Toff settings.
Within 2,00mS and 1,50mS values output activity will operate on HYSTERESIS basis. Once 2,00mS reading value will be
reached the output will always be OFF up to 1,50mS reading value.
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